Microbubble observation apparatus

Abstract

The present application relates to the technical field of micro-bubble observation, and in particular to a micro-bubble observation device. The micro-bubble observation device comprises: a visualization platform, a side of the visualization platform is provided with a chamber inlet and a chamber outlet, an inside of the visualization platform is provided with a containing cavity, the chamber inlet and the chamber outlet are communicated through the containing cavity, and the visualization platform is made of a transparent material; a micro-bubble providing device, the micro-bubble providing device is in sealed communication with the chamber inlet, the micro-bubble providing device can deliver a liquid with micro-bubbles to the containing cavity and can drive the liquid to flow to the chamber outlet; and a shooting device, the shooting device is directed towards the containing cavity of the visualization platform and can shoot the micro-bubbles in the containing cavity. The micro-bubble observation device can realize real-time observation of the collision and coalescence of micro-bubbles.

Description

Technical Field

[0001] This invention relates to the field of microbubble observation technology, and more specifically to microbubble observation equipment. Background Technology

[0002] Microbubbles have advantages such as small volume, long residence time, large specific surface area and high mass transfer efficiency, and are widely used in environmental protection, chemical industry and pharmaceutical industry.

[0003] When there are a large number of microbubbles, adjacent microbubbles will collide and coalesce during their movement. Microbubble coalescence can adversely affect subsequent reactions and transport effects. Therefore, observing the dynamic changes of microbubbles and studying the collisions and coalescence of microbubbles in bubble swarms is of great significance for guiding and optimizing the application of microbubbles. However, there is currently no equipment capable of real-time observation of microbubble collisions and coalescence. Summary of the Invention

[0004] The purpose of this invention is to enable real-time observation of the collision and coalescence of microbubbles.

[0005] To achieve the above objectives, the present invention provides a microbubble observation device, comprising: a visualization platform having a chamber inlet and a chamber outlet on its side, a receiving cavity inside the visualization platform, the chamber inlet and the chamber outlet being connected through the receiving cavity, and the visualization platform being made of a transparent material; a microbubble supply device, which is sealed and connected to the chamber inlet, capable of supplying liquid containing microbubbles to the receiving cavity and driving the liquid to flow towards the chamber outlet; and an imaging device facing the receiving cavity of the visualization platform and capable of imaging the microbubbles in the receiving cavity.

[0006] In some embodiments, the visualization platform has a front and a back that are horizontally opposite each other, with the front facing the imaging device and the receiving cavity located between the front and the back; and / or, the cavity inlet is located below the cavity outlet.

[0007] In some embodiments, the microbubble observation device also includes an illumination device facing the back.

[0008] In some embodiments, the microbubble supply device includes a gas supply mechanism, a liquid supply mechanism, and a microbubble generating mechanism; the microbubble generating mechanism is connected to the chamber inlet of the visualization platform and is capable of supplying liquid containing microbubbles into the receiving chamber; the gas supply mechanism is connected to the microbubble generating mechanism and is capable of supplying gas with a first preset flow rate to the microbubble generating mechanism, the liquid supply mechanism is connected to the microbubble generating mechanism and is capable of supplying liquid with a second preset flow rate to the microbubble generating mechanism, and the microbubble generating mechanism is capable of causing the gas to form microbubbles and mix in the liquid.

[0009] In some embodiments, the microbubble generating mechanism includes an inner tube and an outer tube. The first end of the inner tube is connected to a liquid supply mechanism, and the last end of the inner tube is connected to the chamber inlet of the visualization platform. The inner tube has a plurality of air inlets spaced apart on its wall, which are connected to the interior of the inner tube. The outer tube is sleeved on the outside of the inner tube, and both ends of the outer tube are respectively sealed to the outer surface of the inner tube. An annular buffer cavity is formed between the outer tube and the inner tube. The gas supply mechanism is connected to the buffer cavity. The buffer cavity is connected to the interior of the inner tube through all the air inlets, so that the liquid entering the interior of the inner tube can shear the gas entering the interior of the inner tube through the air inlets into a plurality of microbubbles mixed in the liquid.

[0010] In some embodiments, all air inlets are distributed in multiple rows and columns on the wall of the inner tube; and / or, the inner tube is provided with multiple bubble distributors spaced apart along the axis of the inner tube, the bubble distributors having perforations extending through the axis of the inner tube, the diameter of the perforations being less than or equal to the diameter of the air inlets.

[0011] In some embodiments, the gas supply mechanism includes a gas reservoir and a gas delivery pump, the gas reservoir being connected to a buffer chamber via the gas delivery pump; and / or, the liquid supply mechanism includes a liquid reservoir and a liquid delivery pump, the liquid reservoir being connected to the beginning of the inner tube via the liquid delivery pump.

[0012] In some embodiments, the microbubble observation device further includes a gas-liquid separator capable of separating gas and liquid, wherein the inlet of the gas-liquid separator is connected to the chamber outlet, the gas outlet of the gas-liquid separator is connected to the exhaust pipe, and the chamber outlet of the gas-liquid separator is connected to the liquid storage tank.

[0013] In some embodiments, the microbubble observation device further includes a lifting device, and the imaging device is mounted on the lifting device, which can drive the imaging device to move vertically up and down.

[0014] In some embodiments, the lifting device includes a slider, a guide rail, a support rod, and a lifting driver. The imaging device is mounted on the slider, the slider is slidably mounted on the guide rail, the guide rail extends vertically and is connected to the support rod, the support rod extends vertically and is fixed to the ground, the driving part of the lifting driver is connected to the bottom of the slider, and the fixing part of the lifting driver is connected to the support rod.

[0015] The above-mentioned technical solution of the present invention has the following beneficial effects:

[0016] The microbubble supply device provides liquid containing microbubbles to the chamber inlet. The liquid enters the receiving chamber from the inlet and flows along the receiving chamber towards the chamber outlet. During the liquid flow, the microbubbles in the liquid continuously collide and coalesce within the receiving chamber. The imaging device can photograph the microbubbles in the receiving chamber, thereby enabling real-time observation of the collisions and coalescence of the microbubbles. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a microbubble observation device in one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of a visualization platform in one embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of a microbubble generating mechanism in one embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of a microbubble generating mechanism in another embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the distribution of spiral-shaped raised lines in another embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures

[0023] 1. Visualization platform; 11. Chamber inlet; 12. Chamber outlet; 13. Receiving cavity; 14. Front view; 15. Back view; 2. Imaging device; 3. Lighting device; 4. Gas supply mechanism; 41. Gas storage tank; 42. Gas delivery pump; 5. Liquid supply mechanism; 51. Liquid storage tank; 52. Liquid delivery pump; 6. Microbubble generating mechanism; 61. Inner tube; 62. Outer tube; 63. Air inlet; 64. Buffer chamber; 65. Bubble distributor; 66. Liquid inlet; 67. Liquid outlet; 68. Spiral ridge; 7. Gas-liquid separator; 8. Back pressure valve; 9. Lifting device; 91. Slider; 92. Guide rail; 93. Support rod; 94. Lifting actuator. Detailed Implementation

[0024] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present invention and not to limit the present invention. For those skilled in the art, the present invention can be practiced without some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present invention by illustrating examples of the invention.

[0025] like Figure 1 and Figure 2 As shown, this invention provides a microbubble observation device, which includes a visualization platform 1, a microbubble supply device, and an imaging device 2. The visualization platform 1 has a chamber inlet 11 and a chamber outlet 12 on its side, and a receiving cavity 13 inside the visualization platform 1. The chamber inlet 11 and the chamber outlet 12 are connected through the receiving cavity 13, and the visualization platform 1 is made of a transparent material. The microbubble supply device is sealed and connected to the chamber inlet 11, and can supply liquid containing microbubbles to the receiving cavity 13 and drive the liquid to flow towards the chamber outlet 12. The imaging device 2 faces the receiving cavity 13 of the visualization platform 1 and can photograph the microbubbles in the receiving cavity 13.

[0026] Specifically, the microbubble supply device provides liquid containing microbubbles to the chamber inlet 11. The liquid enters the receiving chamber 13 from the chamber inlet 11 and flows along the receiving chamber 13 towards the chamber outlet 12. During the liquid flow, the microbubbles in the liquid continuously collide and coalesce within the receiving chamber 13. The imaging device 2 can photograph the microbubbles in the receiving chamber 13, thereby enabling real-time observation of the collisions and coalescence of the microbubbles. Therefore, this microbubble observation device can achieve real-time observation of the collisions and coalescence of microbubbles.

[0027] In some embodiments, the material of the visualization platform 1 may be transparent plastic, transparent glass, etc., and the present invention does not impose any limitations.

[0028] like Figure 2 As shown, in some embodiments of the present invention, the visualization platform 1 has a horizontally opposite front 14 and a back 15, with the front 14 facing the shooting device 2 and the receiving cavity 13 located between the front 14 and the back 15.

[0029] Specifically, the visualization platform 1 can be cuboid or hexagonal prism, etc., so that the front side 14 and the back side 15 face each other and are parallel to each other. Preferably, both the front side 14 and the back side 15 are vertically extending planes, and both have the same size. The front side 14 of the visualization platform 1 faces the imaging device 2, so that the imaging device 2 can photograph the liquid in the receiving cavity 13. Of course, when projection is made in a direction perpendicular to the front side 14, the projection of the front side 14 and the projection of the back side 15 can cover the projection of the receiving cavity 13.

[0030] In some embodiments of the present invention, the chamber inlet 11 is located below the chamber outlet 12.

[0031] Specifically, the receiving cavity 13 extends vertically, with the chamber inlet 11 located at the bottom of the visualization platform 1 and the chamber outlet 12 located at the top of the visualization platform. After the liquid enters the chamber inlet 11, it flows upward along the receiving cavity 13 to the chamber outlet 12. During the liquid flow, due to the light weight of the microbubbles, they are subject to buoyancy, resulting in increased movement speed and a wider range of movement. This makes it easier for the microbubbles to collide and coalesce, which helps the imaging device 2 capture more research samples. Additionally, it facilitates the connection between the chamber inlet 11 and the microbubble supply device.

[0032] like Figure 1 As shown, in some embodiments of the present invention, the microbubble observation device further includes an illumination device 3, which faces the back side 15.

[0033] Specifically, the lighting device 3 illuminates the back 15 of the visualization platform 1, increasing the brightness of the receiving cavity 13 to facilitate shooting by the shooting device 2. The lighting device 3 can be any structural form that can achieve the above-mentioned technical effects, and the present invention is not limited thereto.

[0034] like Figure 1 As shown, in some embodiments of the present invention, the microbubble supply device includes a gas supply mechanism 4, a liquid supply mechanism 5, and a microbubble generating mechanism 6. The microbubble generating mechanism 6 is connected to the chamber inlet 11 of the visualization platform 1 and is capable of supplying liquid containing microbubbles to the receiving cavity 13. The gas supply mechanism 4 is connected to the microbubble generating mechanism 6 and is capable of supplying gas to the microbubble generating mechanism 6 with a first preset flow rate. The liquid supply mechanism 5 is connected to the microbubble generating mechanism 6 and is capable of supplying liquid to the microbubble generating mechanism 6 with a second preset flow rate. The microbubble generating mechanism 6 enables the gas to form microbubbles and mix with the liquid.

[0035] Specifically, the gas supply mechanism 4 delivers gas at a first preset flow rate to the microbubble generating mechanism 6, and the liquid supply mechanism 5 delivers liquid at a second preset flow rate to the microbubble generating mechanism 6. The microbubble generating mechanism 6 processes the gas into several microbubbles that mix with the liquid. Naturally, the microbubbles mixing with the liquid result in a gas-liquid mixture. The liquid containing the microbubbles is then continuously transported to the receiving cavity 13 of the visualization platform 1. In this embodiment, the microbubble generating mechanism 6 can use mechanical stirring or ultrasonic vibration to form microbubbles that mix with the liquid; this invention is not limited to these methods.

[0036] like Figure 3As shown, in some embodiments of the present invention, the microbubble generating mechanism 6 includes an inner tube 61 and an outer tube 62. The first end of the inner tube 61 is connected to the liquid supply mechanism 5, and the second end of the inner tube 61 is connected to the chamber inlet 11 of the visualization platform 1. Multiple air inlets 63, communicating with the interior of the inner tube 61, are spaced apart on the tube wall of the inner tube 61. The outer tube 62 is sleeved on the outside of the inner tube 61, with both ends of the outer tube 62 sealed to the outer surface of the inner tube 61. An annular buffer cavity 64 is formed between the outer tube 62 and the inner tube 61, and the gas supply mechanism 4 is connected to the buffer cavity 64. The buffer cavity 64 is connected to the interior of the inner tube 61 through all the air inlets 63, so that the liquid entering the interior of the inner tube 61 can shear the gas entering the interior of the inner tube 61 through the air inlets 63 into multiple microbubbles mixed in the liquid.

[0037] Specifically, the outer tube 62 surrounds the inner tube 61. The length of the outer tube 62 can be equal to or less than the length of the inner tube 61, so that at least two ends of the inner tube 61 are exposed. The interior of the inner tube 61 is a liquid channel. The inlet of the liquid channel (i.e., liquid inlet 66) is located at the beginning of the inner tube 61, and the outlet of the liquid channel (i.e., liquid outlet 67) is located at the end of the inner tube 61. Therefore, the liquid supply mechanism 5 is connected to the beginning of the inner tube 61, which means that the liquid supply mechanism 5 is connected to the inlet of the liquid channel; the chamber inlet 11 of the visualization platform 1 is connected to the end of the inner tube 61, which means that the chamber inlet 11 of the visualization platform 1 is connected to the outlet of the liquid channel. The air inlet 63 is set on the tube wall of the inner tube 61, and the buffer chamber 64 is connected to the liquid channel through the air inlet 63. In this embodiment, the liquid supply mechanism 5 delivers liquid at a second preset flow rate to the liquid channel, and the gas supply mechanism 4 delivers gas at a first preset flow rate to the buffer chamber 64. The gas further enters the liquid channel through the air inlet 63. The flow directions of the gas and the liquid intersect, causing the liquid to impact the gas. Furthermore, the liquid shears the gas at the inner wall of the inner tube 61, breaking the gas into several microbubbles that integrate into the liquid. In addition, the gas at the first preset flow rate also acts as a barrier to prevent the liquid from entering the buffer chamber 64.

[0038] In this embodiment, microbubbles are formed by shearing the gas with a liquid, eliminating the need for complex methods such as mechanical stirring or ultrasonic vibration. This simplifies microbubble generation and helps reduce production costs. Furthermore, the equipment has a simple structure and is easy to maintain.

[0039] It should be noted that those skilled in the art can set the diameter of the air inlet 63, the inner diameter of the inner tube 61, and the values ​​of the first preset flow rate and the second preset flow rate according to actual needs, so that the liquid shears the gas. This invention does not limit these settings. For example, the diameter of the air inlet 63 can range from 1 μm to 400 μm, and the diameter of the inner tube 61 can range from 1 cm to 10 cm; the range of the first preset flow rate is 0.1 m / s to 20 m / s, and the range of the second preset flow rate is 0.1 m / s to 5 m / s, with the first preset flow rate being 2 to 4 times the second preset flow rate; the gas pressure can be between 5 MPa and 20 MPa, and the liquid pressure can be between 5 MPa and 20 MPa.

[0040] like Figure 3 As shown, in some embodiments of the present invention, all air inlets 63 are arranged in multiple rows and columns on the wall of the inner tube 61 to facilitate the generation of a greater number of microbubbles, and the microbubbles can be uniformly mixed in the liquid.

[0041] like Figure 3 As shown, in some embodiments of the present invention, the inner tube 61 is provided with a plurality of bubble distributors 65 spaced apart along the axis of the inner tube 61. The bubble distributors 65 are provided with perforations extending through the axis of the inner tube 61, and the diameter of the perforations is less than or equal to the diameter of the air inlet 63.

[0042] Specifically, after microbubbles are generated in the inner tube 61, they flow with the liquid into the receiving cavity 13. However, microbubbles may also collide and coalesce in the inner tube 61, potentially reducing the number of microbubbles in the receiving cavity 13, which is detrimental to imaging and subsequent analysis. However, if microbubbles collide and coalesce in the inner tube 61 to form large bubbles, and the diameter of these large bubbles is larger than the diameter of the perforation, preventing them from passing through the perforation, the large bubbles will break down back into microbubbles under the impact of the liquid, ensuring that a sufficient number of microbubbles enter the receiving cavity 13.

[0043] In some embodiments of the present invention Figure 3 and Figure 4 As shown, the inner tube 61 extends in a straight line, the inlet of the liquid channel is liquid inlet 66, and the outlet of the liquid channel is liquid outlet 67; and in the direction from liquid inlet 66 to liquid outlet 67, the diameter of the liquid channel gradually decreases, or the diameter of the liquid channel is the same.

[0044] Specifically, the inner tube 61 extends in a straight line, so after the gas mixes with the liquid to form a gas-liquid mixture, the mixture can flow out completely from the liquid outlet 67 without stagnation. Preferably, the air inlet extends towards the axis of the inner tube 61. Furthermore, the inner tube 61 can be cylindrical or conical; correspondingly, the liquid channel can be cylindrical or conical. In some embodiments, the liquid channel is preferably conical to accelerate liquid formation and thus ensure effective gas-liquid mixing.

[0045] In some embodiments of the present invention Figure 4 and Figure 5 As shown, the inner wall of the inner tube 61 is provided with a spiral-shaped ridge 68 that can guide the liquid to flow spirally toward the liquid outlet 67. The spiral-shaped ridge 68 extends spirally from the middle of the inner tube 61 to the end where the liquid outlet 67 of the inner tube 61 is located; all bubble distributors 65 are located between the spiral-shaped ridge 68 and the liquid inlet 66.

[0046] Specifically, setting multiple bubble distributors 65 will create a pressure drop at the liquid outlet 67 and reduce the liquid flow rate. The distribution of the bubble distributors 65 is restricted to between the spiral ridges 68 and the liquid inlet 66, appropriately reducing the number of bubble distributors 65 and placing them appropriately away from the liquid outlet 67 to prevent excessive pressure drop and excessive reduction in liquid flow rate, thus ensuring the liquid's shear capacity. Preferably, the inner tube 61 is conical, facilitating accelerated liquid flow to further ensure the liquid's shear capacity. Furthermore, the spiral ridges 68 guide the liquid towards the liquid outlet 67 in a spiral flow, and the microbubbles also move spirally with the liquid. During this spiral movement, some microbubbles accelerate to the vicinity of the axis of the inner tube 61, reducing the number of microbubbles near the inner wall of the inner tube 61, preventing microbubbles from coalescing near the inner wall of the inner tube 61, and ensuring that the microbubbles are distributed as evenly as possible in the liquid, thereby guaranteeing the gas-liquid mixing effect.

[0047] like Figure 1 As shown, in some embodiments of the present invention, the gas supply mechanism 4 includes a gas storage tank 41 and a gas delivery pump 42, with the gas storage tank 41 connected to the buffer chamber 64 via the gas delivery pump 42. Under the action of the gas delivery pump 42, the gas storage tank 41 can supply gas with stable pressure to the inner tube 61, which helps to form microbubbles with stable quantity and size. A pressure reducing valve, flow meter, pressure gauge, and shut-off valve can be installed on the pipeline between the gas storage tank 41 and the gas delivery pump 42. The gas storage tank 41 can be a gas tank or a gas cylinder, etc.

[0048] In some embodiments of the present invention, the liquid supply mechanism 5 includes a liquid reservoir 51 and a liquid delivery pump 52, wherein the liquid reservoir 51 is connected to the beginning end of the inner tube 61 via the liquid delivery pump 52. Under the action of the liquid delivery pump 52, the liquid reservoir 51 can supply liquid with stable pressure to the inner tube 61, which helps to form microbubbles with stable quantity and size. A pressure reducing valve, flow meter, pressure gauge, and shut-off valve may be installed on the pipeline between the liquid reservoir 51 and the liquid delivery pump 52.

[0049] like Figure 1 As shown, in some embodiments of the present invention, the microbubble observation device further includes a gas-liquid separator 7 capable of separating gas and liquid. The inlet of the gas-liquid separator 7 is connected to the chamber outlet 12, the gas outlet of the gas-liquid separator 7 is connected to the exhaust pipe, and the liquid outlet of the gas-liquid separator 7 is connected to the liquid storage tank 51.

[0050] Specifically, the liquid flowing out of chamber outlet 12 can enter the gas-liquid separator 7, which separates the liquid and gas. The separated liquid returns to the liquid storage tank 51 through the liquid outlet of the gas-liquid separator 7, and the separated gas enters the exhaust pipe through the gas outlet of the gas-liquid separator 7. Preferably, a back pressure valve 8 is provided on the exhaust pipe.

[0051] It should be noted that the gas-liquid separator 7 can be any structural form that can achieve the above-mentioned technical effects, and the present invention does not impose any restrictions.

[0052] like Figure 1 As shown, in some embodiments of the present invention, the microbubble observation device further includes a lifting device 9, and the imaging device 2 is installed on the lifting device 9. The lifting device 9 can drive the imaging device 2 to move vertically up and down, thereby increasing the imaging range of the imaging device 2.

[0053] like Figure 1 As shown, in some embodiments of the present invention, the lifting device 9 includes a slider 91, a guide rail 92, a support rod 93, and a lifting driver 94. The shooting device 2 is mounted on the slider 91, the slider 91 is slidably mounted on the guide rail 92, the guide rail 92 extends vertically and is connected to the support rod 93, the support rod 93 extends vertically and is fixed to the ground, the driving part of the lifting driver 94 is connected to the bottom of the slider 91, and the fixing part of the lifting driver 94 is connected to the support rod 93. Preferably, the lifting driver 94 can be a hydraulic cylinder or an electric telescopic rod, etc.

[0054] Specifically, the support rod 93 is fixed to the bottom surface and provides support for the guide rail 92. The lifting driver 94 can drive the slider 91 to move vertically along the guide rail 92. The slider 91 can drive the shooting device 2 to move vertically back and forth so that the shooting device 2 can move to the target position for shooting.

[0055] In some embodiments of the present invention, the microbubble observation device further includes a control device and a display device. The imaging device 2, the display device, the gas delivery pump 42, the liquid delivery pump 52, and the lifting driver 94 are respectively connected to the control device via signals. The control device can control the operating status of the imaging device 2, the display device, the gas delivery pump 42, the liquid delivery pump 52, and the lifting driver 94. The imaging device 2 is also connected to the display device via signals, and the display device can display the imaging results of the imaging device 2 in real time. Furthermore, the imaging device 2 can be a high-speed camera or an electron microscope, etc., and the present invention is not limited thereto.

[0056] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the existence of an infinite number of specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the present invention to other occasions without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A microbubble observation device, characterized in that, include: A visualization platform (1) is provided with a chamber inlet (11) and a chamber outlet (12) on its side. The visualization platform (1) is provided with a receiving cavity (13) inside. The chamber inlet (11) and the chamber outlet (12) are connected through the receiving cavity (13). The visualization platform (1) is made of transparent material. A microbubble supply device, which is in sealed communication with the chamber inlet (11), is capable of supplying liquid containing microbubbles to the receiving cavity (13) and driving the liquid to flow towards the chamber outlet (12); and The imaging device (2) is oriented toward the cavity (13) of the visualization platform (1) and is capable of imaging the microbubbles in the cavity (13).

2. The microbubble observation device according to claim 1, characterized in that, The visualization platform (1) has a front (14) and a back (15) that are horizontally opposite each other, the front (14) facing the shooting device (2), and the receiving cavity (13) located between the front (14) and the back (15); And / or, the chamber inlet (11) is located below the chamber outlet (12).

3. The microbubble observation device according to claim 2, characterized in that, The microbubble observation device also includes an illumination device (3) facing the back side (15).

4. The microbubble observation device according to claim 1, characterized in that, The microbubble supply device includes a gas supply mechanism (4), a liquid supply mechanism (5), and a microbubble generating mechanism (6); the microbubble generating mechanism (6) is connected to the chamber inlet (11) of the visualization platform (1) and can supply liquid containing microbubbles to the receiving cavity (13); the gas supply mechanism (4) is connected to the microbubble generating mechanism (6) and can supply gas with a first preset flow rate to the microbubble generating mechanism (6); the liquid supply mechanism (5) is connected to the microbubble generating mechanism (6) and can supply liquid with a second preset flow rate to the microbubble generating mechanism (6); the microbubble generating mechanism (6) can cause the gas to form microbubbles and mix them in the liquid.

5. The microbubble observation device according to claim 4, characterized in that, The microbubble generating mechanism (6) includes an inner tube (61) and an outer tube (62). The first end of the inner tube (61) is connected to the liquid supply mechanism (5), and the end of the inner tube (61) is connected to the chamber inlet (11) of the visualization platform (1). The inner tube (61) has a plurality of air inlets (63) spaced apart on its wall, which are connected to the interior of the inner tube (61). The outer tube (62) is sleeved on the outside of the inner tube (61). Both ends of the outer tube (62) are sealed to the outer side of the inner tube (61), and an annular buffer cavity (64) is formed between the outer tube (62) and the inner tube (61). The gas supply mechanism (4) is connected to the buffer cavity (64). The buffer cavity (64) is connected to the inside of the inner tube (61) through all the air inlets (63), so that the liquid entering the inside of the inner tube (61) can shear the gas entering the inside of the inner tube (61) through the air inlets (63) into multiple microbubbles mixed in the liquid.

6. The microbubble observation device according to claim 5, characterized in that, All the air inlets (63) are distributed in multiple rows and columns on the wall of the inner tube (61); And / or, the inner tube (61) is provided with a plurality of bubble distributors (65) spaced apart along the axis of the inner tube (61), the bubble distributors (65) being provided with perforations extending through the axis of the inner tube (61), the diameter of the perforations being less than or equal to the diameter of the air inlet (63).

7. The microbubble observation device according to claim 5, characterized in that, The gas supply mechanism (4) includes a gas storage tank (41) and a gas delivery pump (42), wherein the gas storage tank (41) is connected to the buffer chamber (64) through the gas delivery pump (42); And / or, the liquid supply mechanism (5) includes a liquid reservoir (51) and a liquid transfer pump (52), the liquid reservoir (51) being connected to the head end of the inner tube (61) via the liquid transfer pump (52).

8. The microbubble observation device according to claim 7, characterized in that, The microbubble observation device also includes a gas-liquid separator (7) capable of separating gas and liquid. The inlet of the gas-liquid separator (7) is connected to the outlet (12) of the chamber, the gas outlet of the gas-liquid separator (7) is connected to the exhaust pipe, and the liquid outlet of the gas-liquid separator (7) is connected to the liquid storage tank (51).

9. The microbubble observation device according to claim 1, characterized in that, The microbubble observation device also includes a lifting device (9), and the imaging device (2) is installed on the lifting device (9). The lifting device (9) can drive the imaging device (2) to move vertically up and down.

10. The microbubble observation device according to claim 9, characterized in that, The lifting device (9) includes a slider (91), a guide rail (92), a support rod (93), and a lifting driver (94). The shooting device (2) is mounted on the slider (91). The slider (91) is slidably mounted on the guide rail (92). The guide rail (92) extends vertically and is connected to the support rod (93). The support rod (93) extends vertically and is fixed to the ground. The driving part of the lifting driver (94) is connected to the bottom of the slider (91), and the fixing part of the lifting driver (94) is connected to the support rod (93).

Images